Vendors are encouraged to include their seven-digit vendor number, preceded by "ZZN" (i.e. ZZN 1003533) on their invoice PDFs. Doing so allows the system to recognize them, ensuring a smoother invoicing process. These numbers are provided to vendors when they're first set up, but if you need to search for it, this is easily done in xFlow. Instructions are attached.
Note: When searching you might also encounter vendors that are also set up in non Accounts Payable systems. These IDs are not able to be used via Accounts Payable.
If the numbering range is:
3xxxxxx - 3999999 - This range can only be used by the Macmillan Publishers Royalty Team
5xxxxxx - 5999999 - This can only be used by the Macmillan Learning Royalty Team
xFlow--How to Search for Vendor Number Using xFlow